From cf140b5f4c0ffd1d000fa66de739193051c12f34 Mon Sep 17 00:00:00 2001
From: "Adam J. Stewart" <ajstewart426@gmail.com>
Date: Fri, 6 Jul 2018 07:22:38 -0500
Subject: [PATCH] Add url_for_version and list_url to Ruby package (#8216)

---
 var/spack/repos/builtin/packages/ruby/package.py | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/var/spack/repos/builtin/packages/ruby/package.py b/var/spack/repos/builtin/packages/ruby/package.py
index c79defced1..77e7d80abf 100644
--- a/var/spack/repos/builtin/packages/ruby/package.py
+++ b/var/spack/repos/builtin/packages/ruby/package.py
@@ -31,6 +31,8 @@ class Ruby(AutotoolsPackage):
 
     homepage = "https://www.ruby-lang.org/"
     url      = "http://cache.ruby-lang.org/pub/ruby/2.2/ruby-2.2.0.tar.gz"
+    list_url = "http://cache.ruby-lang.org/pub/ruby/"
+    list_depth = 1
 
     version('2.2.0', 'cd03b28fd0b555970f5c4fd481700852')
 
@@ -63,6 +65,10 @@ class Ruby(AutotoolsPackage):
         expand=False
     )
 
+    def url_for_version(self, version):
+        url = "http://cache.ruby-lang.org/pub/ruby/{0}/ruby-{1}.tar.gz"
+        return url.format(version.up_to(2), version)
+
     def configure_args(self):
         args = []
         if '+openssl' in self.spec:
-- 
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